METHOD AND APPARATUS FOR 3D ORIENTATION-FREE WIRELESS POWER TRANSFER

摘要

A transmission resonator in the present invention includes: at least two loop resonators wherein a magnetic field generated by each loop generator in a near-field zone is substantially orthogonal to a magnetic field generated by the other loop generator at a certain or specific portion of the near-field zone; a power divider configured to divide a single signal into at least two sub-signals having weighting coefficients; a delay array delaying at least one of the sub-signals and supplying each sub-signal to each loop resonator; and a controller configuring the delay array to control the polarization of a magnetic near-field. The present invention additionally includes a communication module receiving feedback information from a receiver to determine the phases of at least two sub-signals in order to generate a magnetic near-field optimized for the receiver. [Reference numerals] (11) Power;(12) Oscillator;(13,24) Tuning;(15,25) Matching circuit;(23) M:1 coupler;(26) Rectifier;(27) Load;(30) Coupling